Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9GXP callsign genealogy
Currently held by TRITT, CHARLES W
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K9GXP's current licensee, walking backwards.
- Potosnak, Mark JILgranted 2016-09-01cancelled 2017-08-15
Successor callsigns
Callsigns held now by people who previously held K9GXP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9GXP, oldest first.
- TRITT, CHARLES W IL1988-12-06 → cancelled 2000-12-07
- Potosnak, Mark J IL2017-08-15 active